Important: Migrate from Secure Email Virtual C100V Models to Avoid McAfee-Related Issues Dear Valued Customer, We are reaching out to ensure your Cisco Secure Email environment continues to operate at optimal performance and reliability. As workloa...
Email Security
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Important Announcements
Cisco Secure Email Add-Ins No Longer Supported on Microsoft Outlook 2019
This is to inform you that, effective October 14, 2025, Microsoft Outlook 2019 is no longer supported for the Secure Email Encryption Service Add-In and Secure Email Submission Add-In.
To continue using these Add-Ins, we recommend upgrading to Microsoft 365. Starting October 2025, download and install the new manifest for:
- Secure Email Encryption Service Add-In from the CRES Admin Dashboard
- Secure Email Submission Add-In from the Cisco Software Download Portal
After downloading the manifests, follow the instructions provided in the Submission and Encryption Add-In guides. For more information, see: Cisco Email Encryption - End-User Guides.
TLS 1.0/1.1 Deprecation from AsyncOS for Secure Email Gateway, Starting version 16.5
We would like to inform you that starting with the AsyncOS 16.5 release, TLS versions 1.0 and 1.1 will no longer be available as configuration options in both the CLI and GUI.
To ensure secure email delivery and receipt, you should use TLS versions 1.2 and 1.3. These versions can be configured via the sslconfig CLI command or through the System Administration > SSL Configuration menu in the user interface.
For detailed instructions on updating TLS versions, please refer to the “System Administration” section of the User Guide for AsyncOS 16.0.x for Cisco Secure Email Gateway.
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Forum Posts
I can't find anything on this site about the issue, but I did get an email about it. I have had this JavaScript issue with a few sites. Is there any way to query the Postini SMTP servers before sending an email? And then generate an alert to the...
Hi all,Does anyone have a clever way of reporting on what messages were released from the Spam Quarantine by users?I know that I can get the information from the euq logs. Just wondering if there is a more elegant way.We are using an M160 appliance ...
How can I block UPS, USPS and FexEd delivery notice scams where the From: address is *@ups.com, *@usps.com, or *@fedex.com but the Envelope-From: is some bogus address that is NOT @ups.com, @usps.com or @fedex.com? Legit messages will have both a Fro...
Hi,I'm looking for information about spam in the Ironport. Specifically I'm interested in why the email was considered as spam.I'm looking for information like...Title, From, Date, ReasonegSomething, Tom Hanks, 04.11.2012, Virus detecedSomething1, Ja...
Resolved! AsyncO/S 7.6.0-444
I am currently piloting the FCS 7.6.0-444 release and have found that it does appear to fix issues we are seeing with 7.5.1-028 on our production ESA's. I am inquiring about the stability of the 7.6.0-444 release, how many have installed it and what...
Is it possible to filter the messages that in the From: field have multiple addresses eg:From: <pplosaj@test.com>, <wklos@test.com>, <kamil.nowakl@test.com>, <m.sadecka@test.com>, <w.brys@test.com>, <bbilican@test.com>, <l.sedek@test....
Hello,IronPort is sending this Warning message:A RAID-event has occurred:RAID disk 1: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=10<NID_NOT_FOUND> LBA=0Version: 7.0.3-005What could be the cause of such warning? ThanksPatrick Y.
Resolved! SMTP Authentication Function
Hi, i want to ask the function of smtp authentication in ironport. Is it used to authenticate with the exchange server or per client using LDAP? When i configure the smtp authentication, is it used for incoming or outgoing connection ? Thanks.Regards...
HiJust sitting at working on a draft for internal mail flow design and i'm thinking about using two C170 as internal relay boxes, to seperate "bulk mail" away form the MTA hosting the usermailboxes, making sure we can deliver lots off news for oure o...
Hi All, I'd like my c100 Ironport appliances to filter (strip?) attachments of a certain name. I don't want to filter by file extension (ie. vbs, scr, etc.), only by the full filenames. I have a list of 20+ files I'd like the Ironport to lookout for,...
Resolved! allow email to specific users
Is it possible to allow email to specific email address from a domain that is blocked?For example, I have been asked by the CEO to block linkedin.com and only provide access for a few select users. Now those users want to receive email from linkedin....
Hi All,I have a iron port email security gateway placed behind a firewall.Recently i had some latency issue on my firewall because of high traffic going through it, on further investigation i found a large number of drops from iron port going to glob...
I'd like to be able to send messages to the on-board spam quarantine via a message or content filter, but this doesn't seem to be allowed. I can send messages to other quarantines like Policy, just not to the spam quarantine. What I'd like to do is h...
Resolved! Meaning of SMTP response ok and accepted
Would you explain the meaning between "received remote SMTP response 'ok" and "received remote SMTP response 'accepted" ?For example:Message 8614706 to abc@efg.com received remote SMTP response 'ok: Messages 1613717078 accepted'.and Message 8512138 t...
Hello,I manage an ISP network with two x1060 and one M670 device.Recently some of the customer's mail are rejected due to ip blacklist,on investigation we found that there is a large number of outgoing spam message from these domains and we confirmed...
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